Abreu, Henso
[20.0, 30.0]
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Dimuon and charm production in nucleus nucleus collisions at the CERN-SPS.

The NA38 & NA50 collaborations Abreu, M.C. ; Alessandro, B. ; Alexa, C. ; et al.
Eur.Phys.J.C 14 (2000) 443-455, 2000.
Inspire Record 524686 DOI 10.17182/hepdata.57421

Muon pair production in p-A, S-U and Pb-Pb collisions has been studied by the NA38 and NA50 collaborations at the CERN SPS. In this paper we present an analysis of the dimuon invariant mass region bet

1 data table
Table 1

CHARM-CHARMBAR cross section Need to divide by 2 to consider only the XF>0 hemisphere.


J/psi, psi' and Drell-Yan production in p p and p d interactions at 450-GeV/c.

The NA51 collaboration Abreu, M.C. ; Alessandro, B. ; Baldit, A. ; et al.
Phys.Lett.B 438 (1998) 35-40, 1998.
Inspire Record 481781 DOI 10.17182/hepdata.46539

J/ ψ and ψ ′ production cross-sections are measured in pp and pd collisions at 450 GeV/ c at the CERN-SPS. The Drell-Yan cross section for muon pairs in the mass range [4.3–8.0] GeV/ c 2 is also determined in the same experiment.

4 data tables
Table 1

The measured cross section for J/PSI production for P P and P DEUTERIUM interactions times their branching ratio to MU+ MU- pairs.. The fraction of the systematic error (DSYS) which must be taken into account in comparison of the two targets is 0.06 (0.13) for the P (DEUT) target.

Table 2

The measured cross section for PSI(3685) production in P P and P DEUTERIUM interactions times their branching ratio to MU+ MU- pairs.. The fraction of the systematic error (DSYS) which must be taken into account in comparison of the two targets is 0.003 (0.006) for the P (DEUT) target.

Table 3

The measured cross section for Drell Yan production in P P and P DEUTERIUM interactions.. The fraction of the systematic error (DSYS) which must be taken into account in comparison of the two targets is 0.5 (1.2) for the P (DEUT) target.

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rivet Analysis
A measurement of alpha(s) from the scaling violation in e+ e- annihilation.

The DELPHI collaboration Abreu, P. ; Adam, W. ; Adye, T. ; et al.
Phys.Lett.B 398 (1997) 194-206, 1997.
Inspire Record 428178 DOI 10.17182/hepdata.47581

The hadronic fragmentation functions of the various quark flavours and of gluons are measured in a study of the inclusive hadron production from Z 0 decays with the DELPHI detector and are compared with the fragmentation functions measured elsewhere at energies between 14 GeV and 91 GeV. A large scaling violation is observed, which is used to extract the strong coupling constant from a fit using a numerical integration of the second order DGLAP evolution equations. The result is α s ( M Z ) = 0.124 −0.007 +0.006 (exp) ± 0.009(theory) where the first error represents the experimental uncertainty and the second error is due to the factorization and renormalization scale dependence.

2 data tables
Table 1

SIG(Q=BQ, Q=CQ, Q=UDS) corresponds to BQ, CQ, and U,D,S quarks fragmentation into charged hadron.

Table 2

alpha_s was evaluated from the scaling violation of the fragmentation func tions. The data from other experiments are used for the fitting procedure.